Firmware dump for an HP 285 desktop fitted with an AMD Ryzen 3 PRO 2200G, described as tested and working. No board number or revision is stated, so identify your motherboard carefully before using it. The RAR is fairly large, suggesting a full SPI image or several files. Use an external programmer to read and save the current chip first, then confirm the image size equals the flash capacity. A mismatched dump will not fit and may leave the board unbootable.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @biosarchive. Enginerys does not host this file.
How to open a .rar file
Compressed archive — the usual wrapper for a schematic + boardview pair or a BIOS + EC set.
Back up your own chip before writing any dump, and match the full board number and revision. Flashing guide →